Pour in the butter and mix with everything else, stretch the mixture, and bake at 170Âșc for about 15 minutes.
Once removing it from the oven, let cool and break until you get a sandy consistency.
Create a more solid consistency by adding a part of the melted butter. Pour this inside the molds in the space not taken up by the mousse and run over molds with a spatula to leave smooth.
Refrigerate or freeze.